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Java plum

Habit Trees or shrubs 6–20+ m; twigs weakly compressed; bark white, smooth.
Leaves

blade drying concolorous olive or tan, ovate, elliptic, or oblong, 8–17 × 3.5–7 cm, leathery, base cuneate, obtuse, or rounded, apex acuminate or obtuse, tip bluntly acute, surfaces glandular, glossy adaxially, glands small, often punctiform, numerous, sometimes more so abaxially.

Inflorescences

15–100-flowered, axillary, panicles of dichasia, 1–3 times compound;

axis 15–60 mm, lateral branches 5–20 mm, axis and branches compressed, glandular;

bracts and bracteoles caducous.

Flowers

sessile at tips of lateral branches;

bud pyriform, 4–5 mm;

hypanthium obconic to narrowly campanulate, 3–5 mm;

calyx lobes caducous, leaving round crateriform scar at ovary summit, equal, 0.5 × 0.5 mm;

petals coherent, forming a calyptra, falling as a unit at anthesis;

stamens 50–100, 3–5 mm;

style 6–7 mm.

Berries

purple black, ellipsoid, 15–20 mm;

calyx tube reduced to persistent, apical ring, 1–2 mm diam. 2n = 22.

Syzygium cumini

Phenology Flowering spring, summer.
Habitat Disturbed areas, often near fresh water.
Elevation 0–40 m. (0–100 ft.)
Distribution
from FNA
FL; se Asia (including India) [Introduced in North America; introduced also elsewhere in tropics]
[BONAP county map]
Discussion

Syzygium cumini is known in the flora area from the central and southern peninsula.

Pimenta dioica has become established near Miami, Florida, and is perhaps most similar to Syzygium cumini. Of the berry fruited species, only these two have many-flowered panicles. Pimenta dioica is most easily distinguished from S. cumini by having pubescent (versus glabrous) flowering hypanthia, leaves with 10–15 prominent lateral veins (versus numerous weak lateral veins), embryos with a hypocotyl much longer than the cotyledons, and leaves with a strong spicy aroma when crushed.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 10.
Parent taxa Myrtaceae > Syzygium
Sibling taxa
S. australe, S. jambos
Synonyms Myrtus cumini, Calyptranthes oneillii, Eugenia cumini, E. jambolana
Name authority (Linnaeus) Skeels: U.S.D.A. Bur. Pl. Industr. Bull. 248: 25. (1912)
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